153493 has 4 divisors (see below), whose sum is σ = 162540. Its totient is φ = 144448.

The previous prime is 153487. The next prime is 153499. The reversal of 153493 is 394351.

153493 is nontrivially palindromic in base 11.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 394351 = 31 ⋅12721.

It is an interprime number because it is at equal distance from previous prime (153487) and next prime (153499).

It can be written as a sum of positive squares in 2 ways, for example, as 142884 + 10609 = 378^2 + 103^2 .

It is a cyclic number.

It is not a de Polignac number, because 153493 - 2⁹ = 152981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4498 + ... + 4531.

It is an arithmetic number, because the mean of its divisors is an integer number (40635).

2¹⁵³⁴⁹³ is an apocalyptic number.

It is an amenable number.

153493 is a deficient number, since it is larger than the sum of its proper divisors (9047).

153493 is an equidigital number, since it uses as much as digits as its factorization.

153493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9046.

The product of its digits is 1620, while the sum is 25.

The square root of 153493 is about 391.7818270415. The cubic root of 153493 is about 53.5421974710.

It can be divided in two parts, 153 and 493, that added together give a palindrome (646).

The spelling of 153493 in words is "one hundred fifty-three thousand, four hundred ninety-three".